Global Climate Change
This site explains the key indicators, evidence, uncertainties and possible solutions for global climate change. Be sure to check out Eyes on the Earth 3D, an interactive that allows users to see how NASA satellites monitor climate change on Earth.
Images, videos, mission news and a link to Dr. C, your personal Mars expert, are part of NASA's Mars Exploration Web site.
The NASA/JPL Photojournal Web site hosts thousands of images from space missions. Pixel pleasers include rover images from the surface of Mars, space-based views of Earth and infrared images of the universe.
Go to images
Search for Another Earth
Find out how many exoplanets (planets that orbit stars outside our solar system) have been discovered. Learn how scientists are trying to find an Earthlike planet outside our solar system.
Basics of Space Flight
This is an online tutorial to help space operations people identify the range of concepts associate with deep space missions. It is also appropriate for interested high school and college students.